Fuse-box



(No Model.)

0. E. KAMMEYER.

FUSE BOX.

.No. 429,133. Patented June 3, 1890.

z'inescses UNITED STATES PATENT CEEIGE.

CARL E. KAMMEYER, CF EAU CLAIRE, XVISCONSINV FUSE-BOX.

SPECIFICATION forming part of Letters Patent No. 429,133, dated June 3, 1890.

Application filed April 1, 1890. Serial No. 346,187. (No model.)

' To all whom it may concern.-

Be it known that I, CARL E. KAMMEYER, a citizen of the United States, and a resident of Eau Claire, in the county of Eau Claire and State of \Visconsin, have invented a certain new and useful Improvement in Electrical Cut-Outs, Fuse-Boxes, or Safety Devices, of which the following is a full, clear, and exact specification.

My invention relates more particularly to that form of fuse-boxes or safety devices used in connection with induction-coils or transformers, but may with equal facility be adopted wherever a fusible safety strip or conductor is to be inserted in an electric circuit; and the object of my invention is to reduce the danger attendant upon the introduction of such safety device into an electrical circuit, and to facilitate the replacement or changing of such fusible strips or conductors.

My invention is illustated in the accompanying drawings, wherein- Figure 1 is a perspective view of a fuse box, showing the cover open. Fig. 2 is a modification.

Like parts are indicated by the same letter in both the figures.

Z) I) b b b b b b are metal lugs fastened to an insulating-plate 0. These lugs are provided with binding-screws for the reception of the terminals of the electrical conductors.

cl (1 d (l (l d d d are corresponding lugs secured on the hinged cover 6 in such a manner that when the box is closed the lugs (1 Will engage with the slotted portions of the lugs or binding-post b, so as to make good electrical contacts.

The illustration shows a fuse-box adapted for two separate circuits, in this case the primary and secondary circuits of a transformer. f and f are the terminals of the secondary circuit, while g g are the terminals of the primary circuit. As shown in the illustration, the continuity of these circuits is broken at the points h and h in case of the primary circuit, and at i and o" in case of the secondary circuit. By closing the cover of the box the circuits will be completed through the safety-fuses jjand j j. Should any of these safety-fuses be ruptured through an excess of current, they may be replaced Without any danger from electrical shocks or short circuits by simply opening the cover, which severs all connection between the fuses proper and the terminals of the circuit.

Referring to Fig. 2, A is the box having the terminals B 1: and C C, and D is the sliding cover of such box having the contacts E E and F F, with the safety-fuses connecting them, as shown, the cover being shown when removed from position.

It will be easily seen that here again'when the lid is placed in position the circuits are completed through the fuses, and if either fuse requires to be replaced access without danger may be had to it by simply removing the lid. It is clear that great changes and alterations could be made in the form of these devices without departing from the spirit of my invention.

hat I claim, and desire to secure by Letters Patent, is as follows:

1. The combination of a converter-coil with abox containing a series of terminals connected, respectively, with the converter-coils, the main line, and the local loop, and a removable lid containing pieces adapted to engage the terminals and connected by fusepieces, so as to suitably close the circuits when the lid is on, but break them when it is off.

2. A fuse-box containing a series of vertically-grooved terminals. with means for connecting one end of a conductor to each and insulated from'each other, with a lid provided with a series of tongues to engage such grooves, said tongues connected by fusepieces to suitably complete the circuits when the lid is on.

CARL E. KAMMEYER.

Witnesses:

GEO. B. PHAW, J. E. I'IORAN. 

